Features: Operating power is DC 6 to 80V, contact load is 30A, 250V AC or 30V DC. High quality voltage monitoring relay is durable and features fast reaction times, making it more efficient. Supports on delay and off delay mode; the delay time can be adjusted from 0s to 999s. Provides 4 operating modes: P-1, relay close delay time and display off setting; P-2, voltage control timer A (delay on); P-3, voltage control timer B (delay off); and P-4, voltage range control. Includes a voltage detection channel and a set of relay switch output (normally open and normally closed). The time relay can be controlled by voltage detection to achieve various functions. Suitable for voltage monitoring, charging and discharging control, overvoltage and undervoltage protection applications. Parameters: One set of conversion: normally open and normally closed Contact Load: NO: 30A/250V AC or 30A/30V DC NC: 20A/250V AC or 20A/30V DC Note: Due to high voltage DC arcing affecting relay contacts, for DC voltages above 60V, the load current should be less than 10A. Contact Resistance: 100mΩ (1A, 6V DC) Mechanical Durability: 10 million operations Electrical Durability: 100,000 operations (10A at 250V AC) Minimum input current for setting display off: 4mA/24V (relay open) Settings are saved automatically after power off. Specifications: Material: ABS Color: Blue Output Timer Range: 0 to 999 seconds (when voltage reaches set value, relay delays opening or closing) Detection Sampling Delay: 0.1 to 0.9 seconds (detection sensitivity) Voltage Detection Range: DC 0 to 99.9V, accuracy ±0.1V Adjustable Voltage Upper and Lower Limits: DC 0 to 99.9V Operating Power: DC 6 to 80V (compatible with up to 60V battery) Item Size: 9.4 x 5.2 x 3 cm / 3.7 x 2.04 x 1.18 in Package Size: 9.5 x 6 x 3 cm / 3.74 x 2.36 x 1.18 in Package Weight: 92g / 3.24 oz Packing List: 1 x Voltage Relay 1 x User Manual (English)